Cam for harvester-reels.



PATBNTED JAN. 15, 1907.

J. T. BRETT. CAM FOR HARVBSTER R'BELS.

APPLICATION FILED PBB.19,1906.

WITNESSES.-

ATTORNEYS [Rs ca Msnrgcrou, a. c.

JAMES T. BRETT, OF MILWAUKEE, WISCONSIN.

CAM FOR HARVESTER-REELS.

Specification of Letters Patent.

Patented Jan. 15,1907.

Application filed February 19, 1906. Serial No. 301,746.

To all whom it may concern:

Be it known that I, JAMES T. BRETT, a citizen of the United States, residing at Milwaukee, county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Cams for Harvester-Reels, of which the following is a specification.

My invention relates to im rovements in harvester-reels of the class s own and described in Letters Patent of the United States, No. 746,534, issued to William Henry Lightcap December 8, 1903. My invention is also divisional to an application executed by me and bearing even date herewith for other improvements in reels of this class, and in which other application I have illustrated, but not claimed, the improvements covered by this application.

The object of this invention is to rovide improved means for operating the ic ing-up teeth or rakes of a harvester-rec whereby the same may be more readily controlled from the drivers seat and whereby greater accuracy is secured with reduced cost of construction.

In the following description reference is had to the accompanying drawings, in which Figure 1 is "a side view of the stationary cam, showing the switch and switch-operating mechanism. Fig. 2 is a side view of the same as seen from the opposite side from that shown in Fig. 1 and sh owing the switch in closed position.

Like parts are id entified by the same reference characters in both views.

A is a stationary cam similar to the cam 17 in the patent above referred to and used for the same general purpose. The cam is provided with a cam-groove B, through which the rollersC of the rake-operating mechanism are caused to travel when the switch member D is in its open osition, as shown in Fig. 1. When the switch member is in closed position, as shown in Fig. 2, the rollers C travel in the circular path formed by said switch and the periphery of the cam.

The switch D is pivotally secured to the cam at E and has a spring F secured to the cam and bearing on a projection f, extending rearwardly from the switch-pivot. The spring therefore tends to push the switch'to open position. A latch-bar G, connected with the switch, passes through a. guide 9 and is provided with a notch g, in which a pin H, carried by the cam, is adapted to engage when the switch D has swung outwardly to the position in which it is shown in Fig. 1. A wire I is secured to the latch-bar G and extends to any suitable point of operation, preferably in the vicinity of the drivers seat, so that by pulling on this wire the switch may be closed at the will of the operator. When the switch is closed, it may be held in closed position by the pin H engaging in a notch j, or, if desired, it may be held by attaching the wire I to any convenient point of support. Where-the notch j is employed, the switch may be released by lifting the wire I to raise the latch-bar G from the pin H.

It will be understood that when the rollers 0 travel on the exterior surface of the cam the rake-teeth on the reel will be held out of operative position, but when the switch D is open the rollers pass into the cam-groove, thus causing the rake-teeth to be thrown outwardly into operative position, while the corresponding roller traverses the cam-groove, as fully shown and described in the patent above referred to.

Having thus described my invention, what I claim as-new, and desire to secure by Letters Patent, is

1. In a device of the described class, the combination of a member having a substantially circular outer rim and provided with a cam-groove cutting the rim at two points; a switch pivoted to the member and adapted to close one end of the cam-groove; said switch being provided with a rounded outer surface adapted, when the switch is closed, to form a continuation of the rim, across one end of the cam-groove, a notched latch-bar connected with the switch and extending through a suitable guide on the member; a catch on the member adapted to engage in the latch-bar notches; a spring adapted to normally press the switch outwardly to open position, and a flexible connection adapted to close the switch from a distant point of operation.

' 2. In a device of the described class, the combination of a member having a substantially circular outer rim, and provided with a cam-groove, cutting the rim at two points; a switch, pivoted to the member and adapted to close one end of the cam-groove; said i justed position and a flexible connection for switch having an outer surfaeeadapted to operating said switch from it distant point. [0

\ extending beyond the switch-pivot and With- 1 form a continuation of the rim when the In testimony whereof I aflix my signature switch is closed; a projection on'the switch in the presence of two Witnesses.

v y JAMES T. BRETT. in the rim, a compression-'sprmg interposed Witnesses: bet-Ween the rim and said projection and h LEVERETT 0. WHEELER, adapted to normally hold the switch in adl JAs. B. ERWIN. 

